Hand-operable vacuum pump



FIG. 1 is a top perspective view of a hand-operable vacuum pump showing my new design, with the pump being connected to a vacuum chamber by way of a detachable tube.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a front elevation view of thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a left side elevation view thereof.

FIG. 7 is top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines showing the detachable tube and vacuum chamber are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a hand-operable vacuum pump, as shown and described. 